A review of the top three blog posts of 2010 based on Google Analytics: Fun with ZFS send and receive for powerful filesystem commands, Stopping SSH Brute Force attacks with PF for server security, and Pulling data from Warcraft Armory with Groovy which gained attention from the Groovy community including Project Manager Guillaume Laforge.

A comprehensive guide to using the PF firewall on FreeBSD to block SSH brute force attacks. Covers enabling PF, creating a brute force table with tracking rules, and using pfctl commands to manage blocked IPs, providing automated protection against password guessing attempts.